global {
    -- constraint at(A, 10, 100)
    constraint at(R.xAxis, 0, 0)
    constraint at(R.yAxis, 0, 0)
    -- constraint at(E, 200, 100)
    -- objective increasingX(A, B, C, D, E)
    -- objective increasingY(A, B, C, D, E)
    objective horizontal(R.xAxis)
    objective upright(R.yAxis)
    -- objective yInRange(A, B, C, D, E, 0, 300)
}

Point x {
    shape = Dot { }
    -- objective centerLabel(x, x.label)
}

Set `R` {
    xAxis = Arrow { }
    yAxis = Arrow { }
}
